A) $ \Delta H _{mix} $
B) $ \Delta S _{mix} $
C) $ \Delta V _{mix} $
D) $ \Delta P=P _{observed}-,P _{Raoult} $
सही उत्तर: B
एक आदर्श विलयन के लिए ..(i)
दो घटकों को मिलाने पर आयतन में कोई परिवर्तन नहीं होता
अर्थात् $ \Delta V _{mixing}=0 $ ..(ii)
मिलाने पर आयतन में कोई परिवर्तन नहीं होता $ \Delta H _{mixing}=0 $
इसलिए, $ \Delta S _{mix}\ne 0 $ एक आदर्श विलयन में।
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